An impurity sometimes found in Ca₃(PO₄)₂ is Fe₂O₃, whichis removed during the production of phosphorus as ferrophos-phorus(Fe₂P). (a) Why is this impurity troubling from an eco-nomic standpoint? (b) If 50. metric tons of crude Ca₃(PO₄)₂ contains 2.0% Fe₂O₃ by mass and the overall yield of phospho-rus is 90.%, how many metric tons of P₄ can be isolated?

Q: 2. Approximately 0.40 hectare of rainforest are capable of absorbing 1000 kg of CO2. Given that the…

A: T = 310K  P = 1atm  Amount of CO2 = 350kg  Molar mass of CO2 = 44.01g/mol R = gas constant = 0.0821…

Q: Why do Selenium and tellurium occur in rare minerals?

A: The reason why Selenium and tellurium occur in rare minerals has to be given,

Q: What mass of silver oxide, Ag2I, is required to produce 25g of silver sulfadiazine, AgC10H9N4SO2,…

A: Molecular mass of any compound is sum of atomic masses of all the elements present in that compound…

Q: Assuming an unlimited amount of phosphorous (P4), how many grams of Mg are needed in order to…

A: Given, Magnesium is reacting with P4. How many grams of Mg is required to produce 1200.0g of Mg3P2 ?

Q: Which fluorinating agent are oftenly used instead of F2? Write two chemicalequations showing their…

A: Fluorinating agents:          An active species which contains fluorine atom as their either an…

Q: The key reaction (unbalanced) in the manufacture of syn-thetic cryolite for aluminum electrolysis is…

A: The balanced chemical equation is as follows, The moles of Na3AlF6 is calculated from aluminium…

Q: Nitric acid forms an oxide of nitrogen on reaction with P4O10. Write the reaction involved. Also…

A: The electron dot formula shows the valence electrons which form the bond between the atoms in a…

Q: snip

A:

Q: What is the mass percent of silicon in the mineral orthoclase (KAlSi3O8)?

A: Mass percentage = mass of the atommass of compound ×100%

Q: Describe the role of(i) NaCN in the extraction of gold from gold ore.(it) SiO2 in the extraction of…

A:

Q: If the equilibrium constant for 3A+3B= 3C is 0.169, then what is the equilibrium constant for 2C=…

A: Consider the information is as follows; 3 A   +    3B     ⇌     3C                 Keq=0.169…

Q: Draw a Lewis structure for(a) The cyclic silicate ion Si₄O₁₂⁸⁻(b) A cyclic hydrocarbon with formula…

A:

Q: What role is played by CO2 in getting pure alumina (A1l2O3) in the extraction of aluminium?

A: Extraction of metals: As metals are found in mines in combined state in ores. It is necessary to…

Q: What mass of magnesium forms when 100,000 A is passed through a MgCl2 melt for 1.00 h if the yield…

A:

Q: The use of silica to form slag in the production of phospho-rus from phosphate rock was introduced…

A: Silica is the name given to a group of minerals composed of silicon and oxygen and these two are the…

Q: Explain the action of TiO2 as a photocalyst during wastewater treatment

A: Wastewater is majorly polluted by the organic textile dye,directly being released into the water…

Q: Give atleast 10 objectives in conversion of chicken feather as fertilizer

A: Chicken feathers mainly contain 80-90% of keratin protein and remaining is nitrogen. Thus it can…

Q: Hydrogen fluoride is produced industrially by the action of sulphuric acid on CaF2. Suppose 308 kg…

A: 1) the percent of yield is = 73.5%. 2) the unreacted CaF2 is = 81.7 Kg.

Q: How many Kilograms of Iron can be recovered from  1,400 kilograms of Iron ore  (  Fe2O3 )

A: By using Molar mass of Fe2O3 and Fe we can solve this problem. 979.2kg of iron can be recovered.

Q: Describe the role of the following :(i) NaCN in the extraction of silver from a silver ore(ii)…

A: Given process, (i) NaCN in the extraction of silver from a silver ore(ii) Iodine in the refining of…

Q: What volume of 0.200 M NaOH is necessary to neutralize the solution produced by dissolving 2.00 g of…

A:

Q: If you mass 0.430 g of Co(NO3)2-6H2O and dissolve it in water, what further information would you…

A: Solution-  (a). we know that  No. of moles = given massmolar mass we need to molar mass of the…

Q: Write the role of the following: (i) Iodine in the refining of zirconium (ii) Silica in the…

A: i) When impure zirconium is heated with the iodine, it will form volatile compound ZrI4, which on…

Q: a) Apply MOT to describe bonding in [Fe(H2O)6]³* and [Fe(CN)6]*- b) Describe extraction of uranium…

A: Answer (a) The molecular orbital theory states that each atom tends to combine together and form…

Q: Basic physical properties of sulphate group minerals and economical use of these properties. Write…

A: Sulphate group minerals have sulphate ion (SO42-) in their structures. It occurs as gangue minerals…

Q: Outline the principles of refining of metals by the following methods :(i) Distillation(ii) Zone…

A: (i) Distillation: Zinc and Mercury have an extremely low boiling point. So on heating them they very…

Q: Treatment of cobalt(II) oxide with oxygen at high temperatures gives Co3O4. Write a balanced…

A: Given that the reaction of cobalt(II) oxide with oxygen gives Co3O4. To find: Balanced chemical…

Q: What is the best synthesis and purification method with regards to cobalt(II) sulphate (CoSO4.7H2O)

A: Cobalt(II) sulphate can be synthesized by the reaction of cobalt metal with aqueous solution of…

Q: The production of high-grade iron from hematite and magnetite using a blast furnace involves several…

A: The production of high-grade iron from hematite and magnetite using a blast furnace involves several…

Q: What is the role of CO2 in the extractive metallurgy of aluminium from its ore?

A: The entire scientific and technological processes involved in the extraction and isolation of a pure…

Q: Selenium is prepared by the reaction of H₂SeO₃ with gaseous SO₂. (a) What redox process does the…

A:

Q: Why, do you think, the sulfur extracted during the Frasch process is 99.5% - 99.9% pure? Why can’t…

A: Frasch process is based on the principle that sulfur has a low melting point. Sulfur is pushed out…

Q: Provide two reactions for rubidium which are of high importance. They could be reactions of wide…

A: Imoprtant reactions of rubidium: Rubidium (Rb), a element of Group 1 in the periodic table, an…

Q: Calculate the number of moles of H2O that will be produced by the reaction of 1.46 mole of solid…

A: Magnesium hydroxide reacts with hydrochloric acid to form magnesium chloride and water. The equation…

Q: Would you expect potassium perchlorate, KClO4(aq), in a concentrated acidic solution to act as an…

A: In Redox chemistry reductant is the species that donates e- to an electron receiver. Thus reducing…

Q: Explain how measuring carbon isotope (12C, 13C,14C) abundance in atmospheric CO2 provides evidence…

A: Carbon occurs predominately in three isotopic forms, C-12, C-13 and C-14. Out of these, C-12 is the…

Q: Write and balance the combustion reaction of methyl sorbate C7H10O2

A: Answer: Combustion of an organic compound that contains carbon, hydrogen and oxygen, means reacting…

Q: The titanium chloride then reacts with liquid magnesium at 900°C to givetitanium and magnesium…

A: 2Mg + TiCl4  → 2MgCl2  + Ti

Q: Write chemical equations for the following processes: (iv) Reduction of VO2+ to produce VO2+ (v)…

A: iv) Since in VO2+, V is in 5+ state and in VO2+, V is in 4+ state Hence the reduction of VO2+ is…

Q: Write the chemical formula for each of the following compounds, and indicate the oxidation state of…

A: Chemical formula of Sodium hypochlorite is NaClO  or  NaOCl . Oxidation state of Na = +1 Oxidation…

Q: What is the function of SiO2 in the metallurgy of copper?

A: Metallurgy is a process in which metals are separated from its ore.

Q: Describe the role of (i) NaCN in the extraction of gold from gold ore. (ii) Si02 in the extraction…

A: The extraction of metals in pure form is defined by the metallurgical process. Metals are made to…

Analytical Tools

Analytical tools or analysis tools help one to get into a conclusion or results from the data collected. Analytical tools can be applied for simple data sets and also in the case of big data analytics.